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Prediction of Particulate Matter Being Accumulated in a Diesel Particulate Filter  

Yu, Jun (Passenger Car Diesel engine Test Team, Power Train R&D Center Hyundai Kia Motors)
Chun, Je-Rok (Passenger Car Diesel engine Test Team, Power Train R&D Center Hyundai Kia Motors)
Hong, Hyun-Jun (Passenger Car Diesel engine Test Team, Power Train R&D Center Hyundai Kia Motors)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.17, no.3, 2009 , pp. 29-34 More about this Journal
Abstract
Diesel particulate filter (DPF) has been developed to optimize engine out emission, especially particulate matter (PM). One of the main important factors for developing the DPF is estimation of soot mass being accumulated inside the DPF. Evaluation of pressure drop over the DPF is a simple way to estimate the accumulated soot mass but its accuracy is known to be limited to certain vehicle operating conditions. The method to compensate drawback is adoption of integrating time history of the engine out PM and burning soot. Present study demonstrates current status of the soot estimation methods including the results from the engine test benches and vehicles.
Keywords
Diesel particulate filter(DPF); Delta pressure model; Simulation model; Resiflow; Particulate matter;
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